CN102832049A - Method of preparing conductive carbon fiber/platinum nanometer material and application of conductive carbon fiber/platinum nanometer material - Google Patents

Method of preparing conductive carbon fiber/platinum nanometer material and application of conductive carbon fiber/platinum nanometer material Download PDF

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Publication number
CN102832049A
CN102832049A CN2012102747072A CN201210274707A CN102832049A CN 102832049 A CN102832049 A CN 102832049A CN 2012102747072 A CN2012102747072 A CN 2012102747072A CN 201210274707 A CN201210274707 A CN 201210274707A CN 102832049 A CN102832049 A CN 102832049A
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conductive carbon
carbon fibre
platinum
carbon fiber
preparation
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孙明轩
崔晓莉
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Fudan University
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Fudan University
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/542—Dye sensitized solar cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention belongs to the technical field of a nanometer material, and in particular discloses a method of preparing a conductive carbon fiber/platinum nanometer material and an application of the conductive carbon fiber/platinum nanometer material. The conductive carbon fiber nanometer material loaded with platinum nanometer particles can be obtained by dipping the conductive carbon fiber after being preheated in an ethanol or isopropanol solution of chloroplatinic acid for overnight and sintering. The conductive carbon fiber/platinum nanometer material obtained by the preparation method acts as the electrodes of a dye-sensitized solar battery pair; and by taking the conductive carbon fiber with good electrical conductivity and high flexibility as a substrate, the shortcoming that the performance of the battery is reduced because of the deformation and resistance of a conductive film is solved. The electrode can be applied to a solid light absorption type battery; the use ratio of sunlight is improved, so that the dye-sensitized solar battery can be used in a narrow space; the preparation method of the electrode is simple; the cost is low; and the preparation method is in favor of commercial application of the dye-sensitized solar battery in a large area.

Description

A kind of conductive carbon fibre/platinum preparation of nanomaterials and application
Technical field
The invention belongs to technical field of nano material, be specifically related to a kind of conductive carbon fibre/platinum preparation of nanomaterials and the application aspect DSSC.
Background technology
Since M. professor Gratzel in 1991 has made a kind of based on dye-sensitized nano porous TiO 2The light anode; Since energy conversion efficiency is 7.1% DSSC (DSSCs); DSSC is owing to its high theoretical transformation efficiency, simple relatively manufacture craft and cost is low, steady performance, becomes the focus of academia and industrial quarters broad research.At present, DSSC just develops towards flexible and solid-state direction, and stereo absorption formula battery occurred, has improved the utilance of sunlight.
Mainly (that the most frequently used is TiO to dye-sensitized solar cells by the multichip semiconductor pore membrane work electrode of dye sensitization 2), contain the right electrolyte of OR electricity (like I 3 -/ I -) and be coated with catalyst electrode (like Pt) three parts are formed.Wherein, to the chief component of electrode, to the electricity conversion important influence of battery as DSSC.To the effect of electrode is to collect the electronics of external loop and it fast, low-loss is passed to the oxidation-reduction pair in the electrolyte, thus make oxidation state on to electrode by catalytic reduction, make electrolyte regeneration.Therefore, should have advantages of high catalytic activity and have higher conductivity electrode.
At present in the bibliographical information; The main Using P t of DSSC to electrode, the gold to electrode, nickel to electrode, carbon to electrode and conducting polymer etc.; Wherein Pt has high catalytic activity and relatively low overpotential to electrode; But it costs an arm and a leg and causes preparation cost higher, thereby brings certain obstacle for the commercial application of DSSC.Development cost is low, catalytic activity is high, stable performance, face resistance is low and the simple DSSC of preparation technology is the inevitable requirement that advances the DSSC industrialization process to the electrode material of electrode.Therefore reduce the Pt load capacity, and keep the catalytic activity and the photovoltaic performance of electrode are become a research focus.
Summary of the invention
Conductive carbon fibre/platinum the preparation of nanomaterials that the object of the present invention is to provide that a kind of cost is low, electric conductivity and degree of flexibility is high and as of the application of DSSC flexibility to electrode.
A kind of conductive carbon fibre provided by the invention/platinum preparation of nanomaterials, concrete steps are following:
(1) conductive carbon fibre is used deionized water, absolute ethyl alcohol and acetone ultrasonic cleaning successively after, dried for standby;
(2) pretreated conductive carbon fibre is immersed in ethanol or the aqueous isopropanol of chloroplatinic acid spends the night, then 380～385 oSintering is 20～25 minutes under the C, can obtain the conductive carbon fibre material of supported platinum nano particle, and wherein said platinum acid chloride solution molar concentration is 5～30mmol/L.
Among the present invention, the diameter of conductive carbon fibre is 0.2～0.5mm, and conductivity is 9～10 Ω/cm.
Among the present invention, preferred, the diameter of conductive carbon fibre is 0.3～0.4mm.
Conductive carbon fibre/platinum nano material that the present invention provides a kind of above-mentioned preparation method to obtain.
The present invention provides conductive carbon fibre/platinum nano material as the application of dye sensitization of solar flexibility to electrode.
The DSSC of electrode being made up of the present invention mainly comprises dye sensitization TiO 2Nanotube light anode contains I -/ I 3 -The conductive carbon fibre of electrolyte and platinum to electrode.The conductive substrates of light anode is the titanium silk, and semiconductive thin film is TiO 2Nanotube, dye molecule are securely attached to TiO 2On the nanotube.Conductive substrates to electrode is a conductive carbon fibre, and the Pt nanoparticle on the Catalytic Layer is carried on the surface of conductive carbon fibre equably.Redox electrolytes matter places between dye sensitization layer and the platinum Catalytic Layer, and through glass tube and silicon rubber entire cell is sealed.
Conductive carbon fibre provided by the invention/platinum preparation of nanomaterials material is easy to get, cost is low.
The conductive carbon fibre for preparing among the present invention/platinum nano material as the used by dye sensitization solar battery flexibility to electrode; Beneficial effect is: adopt material to be easy to get, cost is low and have excellent conducting performance and conductive carbon fibre that degree of flexibility is high as conductive substrates; Overcome conductivity and influenced by deformation and film resistance, helped the development and use of flexible battery; And such electrode can be applied in the stereo absorption formula DSSC, and filamentary structure can be used it in narrow space, enlarged the scope of application of DSSC; Simultaneously on conductive carbon fibre load some catalytic performances Pt nanoparticles preferably, guaranteed the performance of DSSC, and effectively reduced cost and simplified production technology.
Description of drawings
Fig. 1 is that the conductive carbon fibre of the platinum of embodiment 1 preparation amplifies 1000 times surface topography map (SEM).
Fig. 2 is that the conductive carbon fibre of the platinum of embodiment 1 preparation amplifies 40000 times surface topography map (SEM).
Fig. 3 is that the conductive carbon fibre of platinum of conductive carbon fibres peacekeeping embodiment 1 preparation is to the cyclic voltammetry curve of electrode.
Fig. 4 is that the conductive carbon fibre of platinum of embodiment 1 preparation is to the catalytic stability test curve of electrode.
Fig. 5 is the current-voltage curve of the DSSC of embodiment 1 preparation.
Fig. 6 is the current-voltage curve figure after the solar cell parallel connection of embodiment 1 preparation.
Fig. 7 is the power after the solar cell parallel connection of embodiment 1 preparation.
Fig. 8 be embodiment 2 (curve a) with the cyclic voltammetry curve to electrode of embodiment 3 (curve b) preparation.
Fig. 9 be embodiment 2 (curve a) with the current-voltage curve of the DSSC of 3 (curve b) preparation.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Embodiment 1
(diameter is 0.4mm, and conductivity 10 Ω/cm) used deionized water, absolute ethyl alcohol and acetone ultrasonic cleaning 5 minutes successively, after drying up, were dipped in the ethanolic solution of 10mM chloroplatinic acid, spent the night, then 385 with conductive carbon fibre oSintering is 20 minutes under the C, can obtain the conductive carbon fibre material of platinum.Like Fig. 1, shown in Figure 2, the diameter of Pt nanoparticle is 21 ~ 43nm, loads on the conductive carbon fibre equably.
Conductive carbon fibre/platinum nano material is as the application of dye sensitization of solar flexibility to electrode
Utilize electrochemical workstation, adopt cyclic voltammetry to the conductive carbon fibre of platinum to electrode pair I 3 -/ I -The right catalytic activity of electricity is studied.Cyclic voltammetry scan adopts three-electrode system, and reference electrode is Ag/Ag +, be Pt to electrode, electrolyte is for containing 0.1M LiClO 4, 10M LiI and 1M I 2Acetonitrile solution, sweep speed is 50mV.s -1Under identical test condition, adopt cyclic voltammetry to conductive carbon fibre to I 3 -/ I -The right catalytic activity of electricity compares research.Fig. 3 is the cyclic voltammetry curve figure of the conductive carbon fibre of conductive carbon fibre among the present invention, platinum filament and platinum to electrode.Can find out that from CV result Pt nanoparticle is successfully loaded on the conductive carbon fibre, this electrode pair I 3 -/ I -Has catalytic activity preferably.
Utilize electrochemical workstation, adopt cyclic voltammetry to the conductive carbon fibre of platinum to electrode pair I 3 -/ I -The stability of the catalytic activity that electricity is right is studied.Cyclic voltammetry scan adopts three-electrode system, and reference electrode is Ag/Ag +, be Pt to electrode, electrolyte is for containing 0.1M LiClO 4, 10M LiI and 1M I 2Acetonitrile solution, sweep speed is 50mV.s -1By Fig. 4 cyclic voltammetry curve, can find out that the catalytic activity of conductive carbon fibre of the platinum that the present invention prepares is more stable, the 485 all after dates that circulate are to I 3 -/ I -Still has catalytic performance preferably.
With the Ti silk after the anodic oxidation (0.5 mm) 450 oUnder the C, heat treatment 2 hours.After being cooled to room temperature, use 0.2M TiCl 460 oWater bath processing is 1 hour under the C, then 450 oHeat treatment 30min naturally cools to 80 under the C oC puts into more than the ethanol solution sensitization 12h of 0.5 mmol/L N719 dyestuff, can obtain sensitization TiO 2Nano-tube film.With the sensitization nano-TiO 2The parallel transparent glass tube of putting into of the carbon fiber of nanotube and platinum encapsulates the transparent glass tube two ends with insulating cement then.After treating the insulating cement cold curing, inject the LiI that contains 0.1 M, the I of 0.05 M with microsyringe 2And the N-tolimidazole of the 4-tert .-butylpyridine 0.1M of 0.5M, the 3-methoxypropionitrile solution of the guanidine thiocyanate of 0.1M.And then seal injection orifice with insulating cement, just can obtain fibrous DSSC to electrode based on the present invention.Both positive and negative polarity is inserted load, can under illumination, work.Shown in Figure 5 is to be the current/voltage J-V curve to the DSSC of electrode with the conductive carbon fibre of platinum, and open circuit voltage is 0.76V, and short-circuit current density is 8.67mA.cm -2, fill factor, curve factor is 0.47, battery efficiency is 3.01%.
Can find out that by measured battery performance parameter the conductive carbon fibre of platinum is that a kind of very potential DSSC is to electrode material.
With two DSSC parallel connections and three battery parallel connections, the performance of test batteries in parallel connection.Like Fig. 6 and shown in Figure 7, batteries in parallel connection has higher output current and power, and current density decline is less relatively, thereby has verified that such is to electrode possibility of its application in large-area dye-sensitized solar battery.
Embodiment 2
(diameter is 0.3mm, and conductivity 9 Ω/cm) used deionized water, absolute ethyl alcohol and acetone ultrasonic cleaning 5 minutes successively, after drying up, were dipped in the aqueous isopropanol of 5mM chloroplatinic acid, spent the night, then 380 with conductive carbon fibre oSintering is 25 minutes under the C, can obtain the conductive carbon fibre material of platinum.The diameter of Pt nanoparticle is 16 ~ 30nm.
Conductive carbon fibre/platinum nano material is as the application of dye sensitization of solar flexibility to electrode
Utilize electrochemical workstation, adopt cyclic voltammetry to the conductive carbon fibre of platinum to electrode pair I 3 -/ I -The right catalytic activity of electricity is studied.Cyclic voltammetry scan adopts three-electrode system, and reference electrode is Ag/Ag +, be Pt to electrode, electrolyte is for containing 0.1M LiClO 4, 10M LiI and 1M I 2Acetonitrile solution, sweep speed is 50mV.s -1, can as Fig. 8 (curve a) shown in cyclic voltammetry curve.
With the Ti silk (0.4mm) after the anodic oxidation 450 oUnder the C, heat treatment 2 hours.Naturally cool to 80 oC puts into more than the ethanol solution sensitization 12h of 0.5 mmol/L N719 dyestuff, can obtain sensitization TiO 2Nano-tube film.The assembling process of dye-sensitized solar cells such as embodiment 1.The battery performance test result as Fig. 9 (curve a) shown in, short-circuit current density is 6.05mA.cm -2, energy content of battery conversion efficiency is 2.09%.
Embodiment 3
(diameter is 0.3mm, and conductivity 9 Ω/cm) used deionized water, absolute ethyl alcohol and acetone ultrasonic cleaning 5 minutes successively, after drying up, were dipped in the ethanolic solution of 30mM chloroplatinic acid, spent the night, then 380 with conductive carbon fibre oSintering is 25 minutes under the C, can obtain the conductive carbon fibre electrode of platinum.The diameter of Pt nanoparticle is 34 ~ 50nm.
Conductive carbon fibre/platinum nano material is as the application of dye sensitization of solar flexibility to electrode
Utilize electrochemical workstation, adopt cyclic voltammetry to the conductive carbon fibre of the platinum of institute vegetation to electrode pair I 3 -/ I -The right catalytic activity of electricity is studied.Cyclic voltammetry scan adopts three-electrode system, and reference electrode is Ag/Ag +, be Pt to electrode, electrolyte is for containing 0.1M LiClO 4, 10M LiI and 1M I 2Acetonitrile solution, sweep speed is 50mV.s -1Can be shown in Fig. 8 (curve b) cyclic voltammetry curve.
With the Ti silk (0.4mm) after the anodic oxidation 450 oUnder the C, heat treatment 2 hours.Naturally cool to 80 oC puts into more than the ethanol solution sensitization 12h of 0.5mmol/L N719 dyestuff, can obtain sensitization TiO 2Nano-tube film.The assembling process of dye-sensitized solar cells such as embodiment 1.The battery performance test result is shown in Fig. 9 (curve b), and short-circuit current density is 7.55mA.cm -2, energy content of battery conversion efficiency is 2.46%.
Can know the conductive carbon fibre electrode pair I of the platinum that embodiment 3 makes by Fig. 8 and Fig. 9 comparison 3 -/ I -Catalytic activity and the energy conversion efficiency of the battery assembled all be higher than embodiment 2.This possibly be the amount ratio more than 2 owing to platinum among the embodiment 3.

Claims (5)

1. conductive carbon fibre/platinum preparation of nanomaterials is characterized in that concrete steps are following:
(1) conductive carbon fibre is used deionized water, absolute ethyl alcohol and acetone ultrasonic cleaning successively after, dried for standby;
(2) above-mentioned pretreated conductive carbon fibre is immersed in ethanol or the aqueous isopropanol of chloroplatinic acid spends the night, then 380～385 oSintering is 20～25 minutes under the C, can obtain the conductive carbon fibre material of supported platinum nano particle, and wherein said platinum acid chloride solution molar concentration is 5～30mmol/L.
2. preparation method according to claim 1, the diameter that it is characterized in that said conductive carbon fibre is 0.2～0.5mm, conductivity is 9～10 Ω/cm.
3. preparation method according to claim 1 and 2, the diameter that it is characterized in that said conductive carbon fibre is 0.3～0.4mm.
4. the conductive carbon fibre that preparation method according to claim 1 obtains/platinum nano material.
5. the conductive carbon fibre that preparation method according to claim 1 obtains/platinum nano material is as the application of dye sensitization of solar flexibility to electrode.
CN2012102747072A 2012-08-03 2012-08-03 Method of preparing conductive carbon fiber/platinum nanometer material and application of conductive carbon fiber/platinum nanometer material Pending CN102832049A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105047822A (en) * 2015-06-12 2015-11-11 苏州捷迪纳米科技有限公司 Flexible fiber-shaped perovskite solar cell and manufacturing method thereof
CN106449123A (en) * 2016-12-14 2017-02-22 郑州华晶金刚石股份有限公司 Counter electrode for dye-sensitized solar cell, and preparation method and application thereof
CN109962247A (en) * 2017-12-22 2019-07-02 中国电子科技集团公司第十八研究所 Preparation method of high-efficiency oxygen catalytic activity deposition platinum carbon fiber electrode

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1935364A (en) * 2006-10-19 2007-03-28 中山大学 Active carbon fiber platinum-carrying electrocatalyst and its preparing method
CN101140956A (en) * 2007-09-30 2008-03-12 南京大学 Dye sensitization nanocrystalline thin-film solar cell high pore space flexible carbon to electric pole and preparation method thereof
US20080096093A1 (en) * 2006-10-19 2008-04-24 Jang Bor Z Electro-catalyst compositions for fuel cells
CN101510471A (en) * 2009-03-03 2009-08-19 彩虹集团公司 Method for preparing counter electrode of dye sensitization solar battery based on carbon nanotube and platinum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1935364A (en) * 2006-10-19 2007-03-28 中山大学 Active carbon fiber platinum-carrying electrocatalyst and its preparing method
US20080096093A1 (en) * 2006-10-19 2008-04-24 Jang Bor Z Electro-catalyst compositions for fuel cells
CN101140956A (en) * 2007-09-30 2008-03-12 南京大学 Dye sensitization nanocrystalline thin-film solar cell high pore space flexible carbon to electric pole and preparation method thereof
CN101510471A (en) * 2009-03-03 2009-08-19 彩虹集团公司 Method for preparing counter electrode of dye sensitization solar battery based on carbon nanotube and platinum

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105047822A (en) * 2015-06-12 2015-11-11 苏州捷迪纳米科技有限公司 Flexible fiber-shaped perovskite solar cell and manufacturing method thereof
CN105047822B (en) * 2015-06-12 2017-12-19 苏州捷迪纳米科技有限公司 A kind of flexible fiber shape perovskite solar cell and preparation method thereof
CN106449123A (en) * 2016-12-14 2017-02-22 郑州华晶金刚石股份有限公司 Counter electrode for dye-sensitized solar cell, and preparation method and application thereof
CN106449123B (en) * 2016-12-14 2018-03-09 郑州华晶金刚石股份有限公司 For DSSC to electrode and its preparation and application
CN109962247A (en) * 2017-12-22 2019-07-02 中国电子科技集团公司第十八研究所 Preparation method of high-efficiency oxygen catalytic activity deposition platinum carbon fiber electrode

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Application publication date: 20121219